/* Copyright Statement:
 *
 * This software/firmware and related documentation ("MediaTek Software") are
 * protected under relevant copyright laws. The information contained herein is
 * confidential and proprietary to MediaTek Inc. and/or its licensors. Without
 * the prior written permission of MediaTek inc. and/or its licensors, any
 * reproduction, modification, use or disclosure of MediaTek Software, and
 * information contained herein, in whole or in part, shall be strictly
 * prohibited.
 *
 * MediaTek Inc. (C) 2015. All rights reserved.
 *
 * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
 * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
 * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER
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 *
 * The following software/firmware and/or related documentation ("MediaTek
 * Software") have been modified by MediaTek Inc. All revisions are subject to
 * any receiver's applicable license agreements with MediaTek Inc.
 */

package com.mediatek.camera.v2.detection.facedetection;

import android.app.Activity;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.drawable.Drawable;

import com.android.camera.R;
import com.mediatek.camera.debug.LogHelper;
import com.mediatek.camera.debug.LogHelper.Tag;

/**
 * Util class for face detection.
 *
 */
public class FdUtil {
    private static final Tag TAG = new Tag(FdUtil.class.getSimpleName());
    // For Face Detection
    public static final int FACE_DETECTION_ICON_NUM = 4;
    public static final int FACE_FOCUSING = 0;
    public static final int FACE_FOCUSED = 1;
    public static final int FACE_FOCUSFAILD = 2;
    public static final int FACE_BEAUTY = 3;

    private static final int[] FACE_DETECTION_ICON = new int[] {
            R.drawable.ic_face_detection_focusing, R.drawable.ic_face_detection_focused,
            R.drawable.ic_face_detection_failed, R.drawable.ic_facebeautify_frame };

    private Activity mActivity;

    /**
     * Constructor of FdUtil.
     *
     * @param activity The face detection context.
     */
    public FdUtil(Activity activity) {
        mActivity = activity;
    }

    /**
     * Get the drawables of face indicator.
     *
     * @return The face indicator drawables.
     */
    public Drawable[] getViewDrawable() {
        Drawable[] faceStatusIndicators = new Drawable[FACE_DETECTION_ICON_NUM];
        for (int i = 0; i < FACE_DETECTION_ICON_NUM; i++) {
            faceStatusIndicators[i] = mActivity.getResources().getDrawable(FACE_DETECTION_ICON[i]);
        }
        return faceStatusIndicators;
    }

    /**
     * Dump the rectangle message.
     *
     * @param rect A rectangle in RectF.
     * @param msg The main message need to dump.
     */
    public void dumpRect(RectF rect, String msg) {
        LogHelper.v(TAG, msg + "=("
                + rect.left + ","
                + rect.top + ","
                + rect.right + ","
                + rect.bottom + ")");
    }

    /**
     * Change rectF to Rect.
     * @param rectF A rectangle in RectF.
     * @return A rectangle in Rect.
     */
    public Rect rectFToRect(RectF rectF) {
        Rect rect = new Rect();
        rect.left = Math.round(rectF.left);
        rect.top = Math.round(rectF.top);
        rect.right = Math.round(rectF.right);
        rect.bottom = Math.round(rectF.bottom);
        return rect;
    }
}
